CN101594320B - SNMP protocol-based method for message interaction - Google Patents
SNMP protocol-based method for message interaction Download PDFInfo
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- CN101594320B CN101594320B CN2009101422368A CN200910142236A CN101594320B CN 101594320 B CN101594320 B CN 101594320B CN 2009101422368 A CN2009101422368 A CN 2009101422368A CN 200910142236 A CN200910142236 A CN 200910142236A CN 101594320 B CN101594320 B CN 101594320B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/28—Timers or timing mechanisms used in protocols
Abstract
The invention discloses an SNMP protocol-based method for message interaction, which comprises the following steps that: when receiving an SNMP message sent by an SNMP management station, an SNMP proxy estimates the suggested timeout value of the message and feeds the suggested timeout value back to the SNMP management station; and the SNMP management station waits for the response of the SNMP message according to the estimated timeout. Compared with the prior art, the method of the invention overcomes the drawbacks of manual timeout setting, effectively reduces timeout phenomena and improves the efficiency of network management using the SNMP protocol due to the adopted technical measure to dynamic determine the timeout of the management station by the interaction between the SNMP management station and the SNMP proxy.
Description
Technical field
The present invention relates to SNMP (Simple Network Management Protocol, Simple Network Management Protocol) is the field of network management of management interface, relates in particular to a kind of method for message interaction based on snmp protocol.
Background technology
SNMP is the cover NMP based on SGMP (Simple Gateway Monitor Protocol, simple gateway monitoring protocol) by IETF (The Internet Engineering Task Force, the Internet engineering duty group) definition.Utilize SNMP, management work station can telemanagement all support the network equipment of these agreements, comprise the monitoring network state, revise network equipments configuration, receive network event alarm etc.SNMP has adopted special shape---agency/management station's model of Client/Server (client end/server end) model, is to accomplish through the interworking between snmp management station and SNMP agency to Network Management and maintenance.Each SNMP agency is responsible for answering various inquiries and the setting of snmp management station about MIB (Management Information Base, management information bank) definition information, and with trap (trap) mode initiatively to incidents such as snmp management station report and alarms.
Message interaction process between existing snmp management station and SNMP agency is as shown in Figure 1.(being the SNMP message) asked to SNMP agency transmission Get, Get-Next, Get-Bulk, Set in the snmp management station, carries out inter-process after the SNMP agency receives request, and returns response to the snmp management station.Snmp management stands in when the SNMP agency sends request, certain time-out time can be set handle this request, blocks in the state that receives response when the SNMP agent side takes place to return response unusually to prevent that snmp management from standing in always.Snmp management stands in waits for that the SNMP agency returns response before overtime, and system returns normal condition in overtime back, and overtime result is exported at the interface simultaneously.Snmp management station time-out time is generally default value, also can manually be provided with.
It is also different that the time of different requests is handled in the asynchronism(-nization) of different managed device deal with data, same managed device.Especially in Telecommunication network equipment, because data volume is more relatively, handle inquiry and time of request be set longer, surpass the set time-out time in snmp management station through regular meeting.Repeatedly overtimely may cause a series of problems: 1) the snmp management station can't inquire desired data and maybe can't know the result that is provided with to managed device; 2) snmp management stand in overtime after, the keeper possibly can inquire about or setting operation immediately once more, and the SNMP agent side is also being handled a message, can increase the weight of the processing burden of SNMP agent side like this.
Solve above-mentioned overtime problem, a kind of method is the manual adjustment time-out time at the snmp management station.The keeper can not understand all devices fully and handle the required consumed time of different requests, therefore confirms that by the keeper time-out time has significant limitation but in the ordinary course of things.If the time-out time that is provided with is too short, above-mentioned overtime phenomenon appears easily; If the time-out time that is provided with is long, when in SNMP agent processes request process, occurring causing returning response unusually, can have a strong impact on the efficient of keeper's operation, lose time.
Summary of the invention
The technical problem that the present invention will solve provides a kind of method for message interaction based on snmp protocol, to overcome the not enough problem of existing snmp timeout management.
For addressing the above problem, the invention provides a kind of method for message interaction based on the Simple Network Management Protocol snmp protocol, comprising:
When receiving the SNMP message of sending at the snmp management station, the SNMP agency estimates the suggestion time-out time value of this message and feeds back to said snmp management station; The response of said SNMP message is waited at said snmp management station according to this time-out time that estimates.
Further, said method also can have following characteristic:
Preserve the time-out time threshold value among the said SNMP agency;
Said SNMP agency estimates the suggestion time-out time value of this message and feeds back to said snmp management station and is meant:
After said SNMP agency estimates the suggestion time-out time of said SNMP message, judge and to advise that whether the time-out time value was greater than said time-out time threshold value; If then the said time-out time value that estimates is fed back to said snmp management station.
Further, said method also can have following characteristic:
Said SNMP agency then handles the said SNMP message that receives according to old process as judging said suggestion time-out time value less than said time-out time threshold value.
Further, said method also can have following characteristic:
Said time-out time threshold value is provided with said SNMP agency by said snmp management station.
Further, said method also can have following characteristic:
The overtime threshold value that said snmp management station is provided with said SNMP agency is the time-out time value of this SNMP message preset on the said snmp management station.
Further, said method also can have following characteristic:
Said SNMP agency is provided with an enabler flags position;
Said SNMP agency estimates the suggestion time-out time value of this message and feeds back to said snmp management station and is meant:
Said SNMP agency is when receiving said SNMP message; Earlier judge whether the value of current said enabler flags position representes enabled; If said SNMP agency just can estimate and carries out subsequent feedback the suggestion time-out time of the said SNMP message that receives.
Further, said method also can have following characteristic:
The value of said enabler flags position is provided with said SNMP agency by said snmp management station.
Further, said method also can have following characteristic:
Said snmp management station waits for that according to this time-out time that estimates the response of said SNMP message is meant:
This locality, said snmp management station waits for that the time-out time value of this SNMP message response is set to the suggestion time-out time value that estimate of said SNMP agency to its feedback, and in the time-out time scope that this estimates, waits for the response of said SNMP message.
Further, said method also can have following characteristic:
After said snmp management stands in the response of receiving said SNMP message, the local timeout time value is reset to this locality default timeout time value.
Further, said method also can have following characteristic:
The suggestion time-out time value that said SNMP agency estimates this message is meant: said SNMP agency reads from the treatment schedule of database this action type corresponding processing time; Multiply by the veneer quantity that current SNMP agency is managed again, obtain said suggestion time-out time value.
Adopt the method for the invention; Compared with prior art; Owing to taked snmp management station and SNMP to act on behalf of the technical measures that alternant way is dynamically confirmed management station's time-out time; Overcome the deficiency that time-out time manually is set, reduced the appearance of overtime phenomenon effectively, improved the efficient of using snmp protocol to carry out network management.
Description of drawings
Fig. 1 is the message interaction process sketch map between snmp management station and the SNMP agency in the prior art;
Fig. 2 is the message interaction process sketch map between snmp management station and SNMP agency in the embodiment of the invention;
Fig. 3 carries out flow chart of steps of the present invention for snmp management station in the embodiment of the invention;
Fig. 4 is that the SNMP agency carries out flow chart of steps of the present invention in the embodiment of the invention;
Fig. 5 is snmp management station and SNMP agency execution collaboration process figure of the present invention in the embodiment of the invention.
Embodiment
To combine accompanying drawing and embodiment that technical scheme of the present invention is explained in more detail below.
As shown in Figure 2; Basic design of the present invention is: when receiving the SNMP message of sending at the snmp management station; The SNMP agency estimates the suggestion time-out time value of this message and feeds back to the snmp management station, and the response of above-mentioned SNMP message is waited at the snmp management station according to this suggestion time-out time.
In view of the suggestion time-out time and the communicating pair of SNMP agency estimation message are constructed message, analytic message all need expend regular hour and resource; Therefore preferably, the SNMP agency can should advise just that the time-out time value fed back to the snmp management station when the suggestion time-out time value that estimates surpasses a threshold value.Wherein, this threshold value can be provided with the SNMP agency by the snmp management station, and this threshold value can be the time-out time value of this preset on this snmp management station SNMP message.In addition, can also on this SNMP agency, an enabler flags position be set, when the value of this enabler flags position was changed to enabled, SNMP just can estimate the suggestion time-out time of this message when receiving the SNMP message; Otherwise, still operate according to related procedure in the prior art.Certainly, the value of this enabler flags position still can be provided with this SNMP agency by the snmp management station.
When reality is used; Can in SNMP agency's MIB, increase managing overtime time group of objects (snmpTimeOut); As shown in table 1, wherein comprise 3 objects: suggestion time-out time object enabler flags position (enableSuggestedTimeOut), time-out time thresholding (timeOutThreshold) and suggestion time-out time (suggestedTimeOut).Correspondingly increase simultaneously a kind of trap (suggestedTimeOutTrap), the SNMP agency is bundled in the value of the suggestedTimeOut that estimates and reports the suggestion time-out time that the snmp management station estimates to feed back it in this suggestedTimeOutTrap message.
Table 1snmpTimeOut group objects
| Object | Grammer | Visit | Explanation |
| enableSuggestedTimeOu t | INTEGER | RW | Suggestion time-out time object enabler flags position, when its value representation enabled, the SNMP agency just needs to estimate the suggestion time-out time of the SNMP message that receives |
| timeOutThreshold | TimeTick s | RO | The time-out time thresholding |
| suggestedTimeOut | TimeTick s | RO | The suggestion time-out time |
In such cases, mainly may further comprise the steps based on the method for message interaction of snmp protocol:
(a) the SNMP agent side is after receiving the SNMP message; The value of suggestion from procuratorial organ time-out time object enabler flags position; If its value representation enabled; Then the concrete operations type according to this request estimates a suggestion time-out time value, evaluation method can for: from the treatment schedule of proxy database, read this action type corresponding processing time, the current running status factor of the equipment that multiply by again (being the veneer quantity N that current SNMP agency is managed).If the suggestion time-out time value that this time estimates is greater than the time-out time threshold value; The suggestion time-out time value and the suggestedTimeOut object that then will estimate are bound; Through sending the suggestedTimeOutTrap message this estimated value is reported the snmp management station, the request-id value of this trap message is acted on behalf of the request-id value of the above-mentioned SNMP message of receiving for this SNMP; If the value representation of enabler flags position forbidding (disable) state; Perhaps the value representation enabled of enabler flags position but the suggestion time-out time value that estimates are smaller or equal to the time-out time thresholding; Then SNMP agency can handle (the suggestion time-out time that does not promptly feed back its estimation to the snmp management station) to the SNMP message according to existing procedure; And the snmp management station also can still wait for that according to the existing protocol flow process this SNMP agency to its feedback response, promptly no longer carries out flow in its preset time-out time;
(b) after snmp management stands in and receives suggestedTimeOutTrap; Judge whether the request-id that carries in this message is identical with the request-id that sends the SNMP message; If it is identical; Then this locality waits for that the time-out time value of this SNMP message response is set to the suggestion time-out time value of carrying in this trap message, and waits for that according to this suggestion time-out time value the SNMP agency returns response;
(c) conventional treatment is then carried out to this response as in the time-out time scope, receiving response in the snmp management station, and this locality is waited for that the time-out time value of this SNMP message response is revised as this locality default timeout time value.
Further; Carrying out above-mentioned steps (a) before; The snmp management station can be provided with suggestion time-out time object enabler flags position and time-out time threshold value through enableSuggestedTimeOut, these two objects of suggestedTimeOutTrap at any time, and generally the time-out time threshold value is set to this snmp management station time value of employed default timeout.When the default timeout time of the suggestion time-out time that estimates greater than management station, in the time of overtime phenomenon promptly possibly occurring, the suggestion time-out time that the SNMP agency will report it to estimate to the snmp management station; When the suggestion time-out time that estimates was not more than time default timeout at snmp management station, additional treatments was not then done at SNMP agency and snmp management station.And be disabled status in the local acquiescence suggestion time-out time object enabler flags position of SNMP agent side, default timeout the time gate limit value be 0.
In addition; Do not possess automatic dissection process suggestedTimeOutTrap at the snmp management station and be provided with automatically under the situation of ability of time-out time; After suggestedTimeOutTrap is received at this snmp management station, can be set to the estimation time-out time value of carrying among this suggestedTimeOutTrap by the time-out time value of the manual as the case may be this locality of keeper acquiescence.After operation of the same type was accomplished, suggestion manually reset to the local timeout time time-out time value of this snmp management station acquiescence, the i.e. value of timeOutThreshold.
In sum; The introduction of suggestion time-out time object enabler flags position and these two parameters of time-out time thresholding can be avoided unnecessary overtime management processing process and the processing procedures such as establishment, transmission and reception of suggestedTimeOutTrap, thereby has guaranteed that snmp management station and SNMP act on behalf of the high efficiency of information interaction.
Below in conjunction with accompanying drawing, snmp management station and SNMP are acted on behalf of the concrete steps and the bipartite collaboration process of embodiment of the present invention technical scheme and do further to describe in detail:
As shown in Figure 3, it is following that operating procedure of the present invention is carried out at the snmp management station:
System of step 300:SNMP management station normally moves, and waits for that keeper's operation or network snmp message arrive.If the keeper inquires about or setting operation, execution in step 310; If the network snmp message arrives, execution in step 320;
Step 310:SNMP management station sends the SNMP message to the SNMP agency, returns step 300 then;
Step 320: judge that the message that receives is trap message or response message; If trap message, execution in step 330; If response message, execution in step 340;
Step 330: judge whether the trap message of receiving is suggestedTimeOutTrap message, if, execution in step 331; If what receive is conventional trap message, execution in step 350;
Step 331: judge that the parameter request-id in the suggestedTimeOutTrap message receive is whether identical with the current request-id that has sent message.If identical, execution in step 332; Otherwise what expression was received is invalid suggestedTimeOutTrap message, is left intact, and returns step 300;
Step 332: extract suggestion time-out time (suggestedTimeOut) data of carrying among the suggestedTimeOutTrap, the time-out time value at this snmp management station is set to this suggestion time-out time value.Return step 300;
Step 340: conventional treatment is carried out in the response to the SNMP agency who receives returns, and takes place under the situation of change in the local timeout time, and the local timeout time is reset to local time default timeout, returns step 300.
Step 350: the trap message to receiving is carried out conventional treatment.Return step 300.
As shown in Figure 4, it is following that the SNMP agency carries out operating procedure of the present invention:
Step 400:SNMP agency plant normally moves, and waits for that network SNMP message arrives.If receive the SNMP message, execution in step 410;
Step 410: judge whether the SNMP message that receives is that enableSuggestedTimeOut or suggestedTimeOutTrap are provided with.If, execution in step 420; Otherwise, think that then what receive is conventional SNMP message, execution in step 430;
Step 420: upgrade local suggestion time-out time object enabler flags position or time-out time threshold value according to the variate-value that carries in the message, return step 400 then.
Step 430: whether the value of judging suggestion time-out time object enabler flags position representes to be in enabled, if then execution in step 440; Otherwise, execution in step 460;
Step 440: the value of estimation suggestion time-out time, and whether judge this suggestion time-out time value that estimates greater than the time-out time threshold value, if greater than, execution in step 450; Otherwise, represent that this operation required time is shorter, can be not overtime, need not carry out special processing, execution in step 460;
Step 450: the time-out time value that estimates is bound to object suggestedTimeOut, through the suggestedTimeOutTrap information reporting to the snmp management station;
Step 460: the SNMP message to receiving carries out conventional treatment, and tectonic response message sends to the snmp management station, returns step 400.
As shown in Figure 5, it is following that snmp management station and SNMP agency carry out collaboration process of the present invention:
The transmission of step 510:SNMP management station is provided with the request (annotate: this step can be carried out in any moment of communicating by letter, and also can not carry out) of the overtime object enabler flags of suggestion position and time-out time thresholding or sends conventional request message to the SNMP agency;
Step 520:SNMP agency upgrades the local system parameter value after receiving the request of setting;
Step 530:SNMP agency judges the value of local suggestion time-out time enabler flags position after receiving the SNMP request message, be divided into following two kinds of situation:
If a) the value representation illegal state of suggestion time-out time enabler flags position, execution in step 570;
B) if advise the value representation enabled of time-out time enabler flags position, execution in step 540;
The value of step 540:SNMP agency estimation suggestion time-out time, if the suggestion time-out time value that estimates smaller or equal to the time-out time threshold value, execution in step 570; Otherwise, execution in step 550;
Step 550:SNMP agency structure suggestedTimeOutTrap also reports the snmp management station, wherein carries the above-mentioned suggestion time-out time that estimates;
After suggestedTimeOutTrap receives in step 560:SNMP management station, carry out validity according to wherein request-id and judge, if effective suggestedTimeOutTrap then upgrades the value of local timeout time; Otherwise, be left intact;
The conventional request message of step 570:SNMP agent processes, tectonic response returns to the snmp management station;
Step 580:SNMP management station carries out conventional treatment after in the time-out time scope, receiving response, and takes place under the situation of change in the local timeout time, and the value of local timeout time is reset to management station's default timeout time value.
Need to prove, step 560 and 570 execution sequence in no particular order, as long as guarantee that this two step is between step 550 and 580.
Through above step; Under snmp management station and SNMP agency's cooperation, use the method for estimation time-out time value, can realize dynamic-configuration to snmp management station time-out time; Effectively avoided having improved the efficient of network management because of time-out time is provided with the unreasonable overtime phenomenon that causes.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. the method for message interaction based on the Simple Network Management Protocol snmp protocol is characterized in that,
When receiving the SNMP message of sending at the snmp management station, the SNMP agency estimates the suggestion time-out time value of this message and feeds back to said snmp management station; The response of said SNMP message is waited at said snmp management station according to this time-out time that estimates.
2. the method for claim 1 is characterized in that,
Preserve the time-out time threshold value among the said SNMP agency;
Said SNMP agency estimates the suggestion time-out time value of this message and feeds back to said snmp management station and is meant:
After said SNMP agency estimates the suggestion time-out time of said SNMP message, judge and to advise that whether the time-out time value was greater than said time-out time threshold value; If then the said time-out time value that estimates is fed back to said snmp management station.
3. method as claimed in claim 2 is characterized in that,
Said SNMP agency then handles the said SNMP message that receives according to old process as judging said suggestion time-out time value less than said time-out time threshold value.
4. like claim 2 or 3 described methods, it is characterized in that,
Said time-out time threshold value is provided with said SNMP agency by said snmp management station.
5. method as claimed in claim 4 is characterized in that,
The overtime threshold value that said snmp management station is provided with said SNMP agency is the time-out time value of this SNMP message preset on the said snmp management station.
6. like any described method in the claim 1～3, it is characterized in that,
Said SNMP agency is provided with an enabler flags position;
Said SNMP agency estimates the suggestion time-out time value of this message and feeds back to said snmp management station and is meant:
Said SNMP agency is when receiving said SNMP message; Earlier judge whether the value of current said enabler flags position representes enabled; If said SNMP agency just can estimate and carries out subsequent feedback the suggestion time-out time of the said SNMP message that receives.
7. method as claimed in claim 6 is characterized in that,
The value of said enabler flags position is provided with said SNMP agency by said snmp management station.
8. according to claim 1 or claim 2 method is characterized in that,
Said snmp management station waits for that according to this time-out time that estimates the response of said SNMP message is meant:
This locality, said snmp management station waits for that the time-out time value of this SNMP message response is set to the suggestion time-out time value that estimate of said SNMP agency to its feedback, and in the time-out time scope that this estimates, waits for the response of said SNMP message.
9. method as claimed in claim 8 is characterized in that,
After said snmp management stands in the response of receiving said SNMP message, the local timeout time value is reset to this locality default timeout time value.
10. according to claim 1 or claim 2 method is characterized in that,
The suggestion time-out time value that said SNMP agency estimates this message is meant: said SNMP agency reads from the treatment schedule of database this action type corresponding processing time; Multiply by the veneer quantity that current SNMP agency is managed again, obtain said suggestion time-out time value.
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| CN2009101422368A CN101594320B (en) | 2009-06-23 | 2009-06-23 | SNMP protocol-based method for message interaction |
| JP2012516493A JP5468681B2 (en) | 2009-06-23 | 2010-05-20 | Message interaction method based on simple network management protocol |
| PCT/CN2010/072997 WO2010148849A1 (en) | 2009-06-23 | 2010-05-20 | Method for interacting messages based on simple network management protocol |
| US13/258,060 US8645519B2 (en) | 2009-06-23 | 2010-05-20 | Method for interacting messages based on simple network management protocol |
| EP10791355.0A EP2448210B1 (en) | 2009-06-23 | 2010-05-20 | Method for interacting messages based on simple network management protocol |
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| JP2009098908A (en) * | 2007-10-16 | 2009-05-07 | Kyocera Mita Corp | Time-out control system, client device, server device, and time-out control method |
| CN101459496B (en) | 2008-12-18 | 2011-05-04 | 北京大学 | Regulating method and apparatus for timeout interval for messages |
| CN101594320B (en) | 2009-06-23 | 2012-05-09 | 中兴通讯股份有限公司 | SNMP protocol-based method for message interaction |
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2009
- 2009-06-23 CN CN2009101422368A patent/CN101594320B/en not_active Expired - Fee Related
-
2010
- 2010-05-20 US US13/258,060 patent/US8645519B2/en active Active
- 2010-05-20 JP JP2012516493A patent/JP5468681B2/en not_active Expired - Fee Related
- 2010-05-20 EP EP10791355.0A patent/EP2448210B1/en not_active Not-in-force
- 2010-05-20 WO PCT/CN2010/072997 patent/WO2010148849A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9332089B2 (en) | 2005-05-25 | 2016-05-03 | Microsoft Technology Licensing, Llc | Data communication coordination with sequence numbers |
| US9438696B2 (en) | 2005-05-25 | 2016-09-06 | Microsoft Technology Licensing, Llc | Data communication protocol |
| US9331955B2 (en) | 2011-06-29 | 2016-05-03 | Microsoft Technology Licensing, Llc | Transporting operations of arbitrary size over remote direct memory access |
| US9462039B2 (en) | 2011-06-30 | 2016-10-04 | Microsoft Technology Licensing, Llc | Transparent failover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101594320A (en) | 2009-12-02 |
| JP5468681B2 (en) | 2014-04-09 |
| EP2448210A4 (en) | 2013-09-04 |
| JP2012530981A (en) | 2012-12-06 |
| US8645519B2 (en) | 2014-02-04 |
| US20120096137A1 (en) | 2012-04-19 |
| EP2448210A1 (en) | 2012-05-02 |
| EP2448210B1 (en) | 2017-08-23 |
| WO2010148849A1 (en) | 2010-12-29 |
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